Authorities searching for a missing Virginia couple in their 60s near Amboy Crater uncovered male remains during a search last weekend. But they’re still looking for the woman, and a search is planned for this weekend as high temperatures are forecast for the area.

Sheriff’s dispatch was notified June 13 about a vehicle parked at Amboy Crater for about 10 days that was thought to be abandoned. An extensive search of the area was conducted, but no victims were found.

Investigators learned Susan Schmeirer, 65, and William Schmeirer, 64, both of Williamsburg, Va., left their home May 27 on a cross-country road trip and were due in Palm Springs on or about June 2, according to a San Bernardino County sheriff’s news release.

From left, Susan Schmeirer, 65, and William Schmeirer, 64, both of Williamsburg, Virginia. (Courtesy photo)

From left, Susan Schmeirer, 65, and William Schmeirer, 64, both of Williamsburg, Virginia. (Courtesy photo)

On Saturday, the sheriff’s Morongo Basin station conducted an extensive search with deputies, volunteers and a search dog, and male human remains were found matching the description of William Schmeirer, the news release stated. The coroner has not yet made a positive identification, and the cause of death is unknown pending an autopsy, officials said.

However, Susan Schmeirer has not been found. The Sheriff’s Department and Search and Rescue volunteers planned to do another major search of the Amboy Crater area this weekend, according to the news release.

Sheriff’s officials warned the public about the dangers of people conducting their own searches. Daytime temperatures will be extremely high this week, and ground temperatures will be even higher due to the dark lava ground cover. There is poor or no cell phone service in the remote desert area, officials explained.

The area is south of Interstate 40, north of Joshua Tree National Park.

The National Weather Service issued an excessive heat warning for the Amboy area with high temperatures forecast of 115 degrees Wednesday, 117 degrees Thursday, 118 degrees Friday and 113 degrees Saturday.

Anyone with information related to the investigation can contact the sheriff’s Morongo Basin station at 760-366-4175. To remain anonymous, call the WeTip Hotline at 888-78-CRIME (27463) or go to wetip.com.